How to match a bitmap and a checkbox (radiobutton) in a window ?

Hi,

      I draw a bitmap in a window and i want to use checkbox and radiobutton within this window. How can i do to match these two window controls background color with my bitmap ? In theory, i must initialize the background color of these controls to Transparent to prevent these backgrounds to overwrite the bitmap, so, the only things you can see are the text (checkbox & radiobutton) and the mark.
Must i use WM_CTLCOLOR, in which way ......

Thanks
marsAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

NickRepinCommented:
I don't know, what programming system you use: OWL, MFC...
But here common answer.

In your window's procedure you must process WM_CTLCOLORBTN message:
 
 case WM_CTLCOLORBTN:
     HWND hButton=(HWND) lParam;
     // Here make sure hButton is your bitmap's check/radiobutton handle
     // .....
     // Create background brush
     HGDIOBJ hBrush=GetStockObject(NULL_BRUSH);
     return (LRESULT) hBrush;
 

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Development

From novice to tech pro — start learning today.